diff --git a/src/libsysprof-gtk/meson.build b/src/libsysprof-gtk/meson.build
index c79ba64a..2e268e08 100644
--- a/src/libsysprof-gtk/meson.build
+++ b/src/libsysprof-gtk/meson.build
@@ -17,6 +17,7 @@ libsysprof_gtk_public_headers = [
 
 libsysprof_gtk_deps = [
   dependency('libadwaita-1'),
+  dependency('libpanel-1'),
   dependency('gtk4', version: gtk_req_version),
 
   libsysprof_analyze_dep,
diff --git a/src/libsysprof-gtk/sysprof-callgraph-view-private.h b/src/libsysprof-gtk/sysprof-callgraph-view-private.h
index f574bd74..5c78481f 100644
--- a/src/libsysprof-gtk/sysprof-callgraph-view-private.h
+++ b/src/libsysprof-gtk/sysprof-callgraph-view-private.h
@@ -20,6 +20,8 @@
 
 #pragma once
 
+#include <libpanel.h>
+
 #include "sysprof-callgraph-view.h"
 
 G_BEGIN_DECLS
@@ -42,6 +44,7 @@ struct _SysprofCallgraphView
   GtkCustomSorter *descendants_name_sorter;
   GtkCustomSorter *functions_name_sorter;
   GtkScrolledWindow *scrolled_window;
+  PanelPaned *right_paned;
   GtkWidget *paned;
 
   GCancellable *cancellable;
diff --git a/src/libsysprof-gtk/sysprof-callgraph-view.c b/src/libsysprof-gtk/sysprof-callgraph-view.c
index 6abdc143..eb9c64e5 100644
--- a/src/libsysprof-gtk/sysprof-callgraph-view.c
+++ b/src/libsysprof-gtk/sysprof-callgraph-view.c
@@ -20,6 +20,8 @@
 
 #include "config.h"
 
+#include <libpanel.h>
+
 #include "libsysprof-gtk-resources.h"
 
 #include "sysprof-callgraph-view-private.h"
@@ -161,6 +163,9 @@ sysprof_callgraph_view_list_traceables_cb (GObject      *object,
       gtk_column_view_set_model (self->traceables_column_view, GTK_SELECTION_MODEL (single));
       traceables_selection_changed_cb (self, 0, 0, single);
     }
+
+  gtk_widget_set_visible (gtk_widget_get_parent (GTK_WIDGET (self->right_paned)),
+                          model && g_list_model_get_n_items (model));
 }
 
 static void
@@ -362,7 +367,7 @@ sysprof_callgraph_view_class_init (SysprofCallgraphViewClass *klass)
   gtk_widget_class_bind_template_child (widget_class, SysprofCallgraphView, functions_column_view);
   gtk_widget_class_bind_template_child (widget_class, SysprofCallgraphView, functions_name_sorter);
   gtk_widget_class_bind_template_child (widget_class, SysprofCallgraphView, paned);
-  gtk_widget_class_bind_template_child (widget_class, SysprofCallgraphView, scrolled_window);
+  gtk_widget_class_bind_template_child (widget_class, SysprofCallgraphView, right_paned);
   gtk_widget_class_bind_template_child (widget_class, SysprofCallgraphView, traceable_column_view);
   gtk_widget_class_bind_template_child (widget_class, SysprofCallgraphView, traceables_column_view);
   gtk_widget_class_bind_template_callback (widget_class, format_time_offset);
@@ -370,12 +375,16 @@ sysprof_callgraph_view_class_init (SysprofCallgraphViewClass *klass)
   klass->augment_size = GLIB_SIZEOF_VOID_P;
 
   g_resources_register (libsysprof_gtk_get_resource ());
+
+  g_type_ensure (PANEL_TYPE_PANED);
 }
 
 static void
 sysprof_callgraph_view_init (SysprofCallgraphView *self)
 {
   gtk_widget_init_template (GTK_WIDGET (self));
+
+  gtk_widget_set_visible (gtk_widget_get_parent (GTK_WIDGET (self->right_paned)), FALSE);
 }
 
 static int
diff --git a/src/libsysprof-gtk/sysprof-callgraph-view.ui b/src/libsysprof-gtk/sysprof-callgraph-view.ui
index 5c833fcb..eba0bb23 100644
--- a/src/libsysprof-gtk/sysprof-callgraph-view.ui
+++ b/src/libsysprof-gtk/sysprof-callgraph-view.ui
@@ -2,15 +2,15 @@
 <interface>
   <template class="SysprofCallgraphView" parent="GtkWidget">
     <child>
-      <object class="GtkPaned" id="paned">
-        <property name="position">250</property>
-        <property name="start-child">
-          <object class="GtkPaned">
+      <object class="PanelPaned" id="paned">
+        <child>
+          <object class="PanelPaned">
             <property name="orientation">vertical</property>
-            <property name="start-child">
+            <child>
               <object class="GtkScrolledWindow" id="functions_scrolled_window">
-                <property name="hscrollbar-policy">never</property>
                 <property name="vexpand">true</property>
+                <property name="propagate-natural-width">true</property>
+                <property name="hscrollbar-policy">never</property>
                 <child>
                   <object class="GtkColumnView" id="functions_column_view">
                     <child>
@@ -24,25 +24,33 @@
                         <property name="factory">
                           <object class="GtkBuilderListItemFactory">
                             <property name="bytes"><![CDATA[
-<?xml version="1.0" encoding="UTF-8"?>
-<interface>
-  <template class="GtkListItem">
-    <property name="child">
-      <object class="GtkInscription">
-        <property name="text-overflow">ellipsize-start</property>
-        <property name="xalign">.0</property>
-        <binding name="text">
-          <lookup name="name">
-            <lookup name="symbol" type="SysprofCallgraphSymbol">
-              <lookup name="item">GtkListItem</lookup>
-            </lookup>
-          </lookup>
-        </binding>
-      </object>
-    </property>
-  </template>
-</interface>
-]]>
+    <?xml version="1.0" encoding="UTF-8"?>
+    <interface>
+      <template class="GtkListItem">
+        <property name="child">
+          <object class="GtkInscription">
+            <property name="text-overflow">clip</property>
+            <property name="nat-chars">15</property>
+            <property name="xalign">.0</property>
+            <binding name="text">
+              <lookup name="name">
+                <lookup name="symbol" type="SysprofCallgraphSymbol">
+                  <lookup name="item">GtkListItem</lookup>
+                </lookup>
+              </lookup>
+            </binding>
+            <binding name="tooltip-text">
+              <lookup name="name">
+                <lookup name="symbol" type="SysprofCallgraphSymbol">
+                  <lookup name="item">GtkListItem</lookup>
+                </lookup>
+              </lookup>
+            </binding>
+          </object>
+        </property>
+      </template>
+    </interface>
+    ]]>
                             </property>
                           </object>
                         </property>
@@ -51,11 +59,11 @@
                   </object>
                 </child>
               </object>
-            </property>
-            <property name="end-child">
+            </child>
+            <child>
               <object class="GtkScrolledWindow" id="callers_scrolled_window">
                 <property name="hscrollbar-policy">never</property>
-                <property name="vexpand">true</property>
+                <property name="min-content-height">150</property>
                 <child>
                   <object class="GtkColumnView" id="callers_column_view">
                     <style>
@@ -73,7 +81,7 @@
   <template class="GtkListItem">
     <property name="child">
       <object class="GtkInscription">
-        <property name="text-overflow">ellipsize-start</property>
+        <property name="text-overflow">ellipsize-middle</property>
         <property name="xalign">.0</property>
         <binding name="text">
           <lookup name="name">
@@ -82,6 +90,13 @@
             </lookup>
           </lookup>
         </binding>
+        <binding name="tooltip-text">
+          <lookup name="name">
+            <lookup name="symbol" type="SysprofCallgraphSymbol">
+              <lookup name="item">GtkListItem</lookup>
+            </lookup>
+          </lookup>
+        </binding>
       </object>
     </property>
   </template>
@@ -95,30 +110,29 @@
                   </object>
                 </child>
               </object>
-            </property>
+            </child>
           </object>
-        </property>
-        <property name="end-child">
-          <object class="GtkPaned">
-            <property name="start-child">
-              <object class="GtkScrolledWindow" id="scrolled_window">
-                <property name="hexpand">true</property>
+        </child>
+        <child>
+          <object class="GtkScrolledWindow" id="descendants_scrolled_window">
+            <property name="hexpand">true</property>
+            <property name="propagate-natural-height">true</property>
+            <child>
+              <object class="GtkColumnView" id="descendants_column_view">
+                <style>
+                  <class name="data-table"/>
+                </style>
                 <child>
-                  <object class="GtkColumnView" id="descendants_column_view">
-                    <style>
-                      <class name="data-table"/>
-                    </style>
-                    <child>
-                      <object class="GtkColumnViewColumn" id="descendants_column">
-                        <property name="title" translatable="yes">Descendants</property>
-                        <property name="expand">true</property>
-                        <property name="sorter">
-                          <object class="GtkCustomSorter" id="descendants_name_sorter">
-                          </object>
-                        </property>
-                        <property name="factory">
-                          <object class="GtkBuilderListItemFactory">
-                            <property name="bytes"><![CDATA[
+                  <object class="GtkColumnViewColumn" id="descendants_column">
+                    <property name="title" translatable="yes">Descendants</property>
+                    <property name="expand">true</property>
+                    <property name="sorter">
+                      <object class="GtkCustomSorter" id="descendants_name_sorter">
+                      </object>
+                    </property>
+                    <property name="factory">
+                      <object class="GtkBuilderListItemFactory">
+                        <property name="bytes"><![CDATA[
 <?xml version="1.0" encoding="UTF-8"?>
 <interface>
   <template class="GtkListItem">
@@ -203,32 +217,33 @@
   </template>
 </interface>
 ]]>
-                            </property>
-                          </object>
                         </property>
                       </object>
-                    </child>
+                    </property>
                   </object>
                 </child>
               </object>
-            </property>
-            <property name="end-child">
-              <object class="GtkPaned">
-                <property name="orientation">vertical</property>
-                <property name="end-child">
-                  <object class="GtkScrolledWindow">
-                    <property name="vexpand">false</property>
+            </child>
+          </object>
+        </child>
+        <child>
+          <object class="PanelPaned" id="right_paned">
+            <property name="hexpand">false</property>
+            <property name="orientation">vertical</property>
+            <child>
+              <object class="GtkScrolledWindow">
+                <property name="vexpand">true</property>
+                <child>
+                  <object class="GtkColumnView" id="traceables_column_view">
+                    <style>
+                      <class name="data-table"/>
+                    </style>
                     <child>
-                      <object class="GtkColumnView" id="traceables_column_view">
-                        <style>
-                          <class name="data-table"/>
-                        </style>
-                        <child>
-                          <object class="GtkColumnViewColumn" id="traceables_time_column">
-                            <property name="title" translatable="yes">Time</property>
-                            <property name="factory">
-                              <object class="GtkBuilderListItemFactory">
-                                <property name="bytes"><![CDATA[
+                      <object class="GtkColumnViewColumn" id="traceables_time_column">
+                        <property name="title" translatable="yes">Time</property>
+                        <property name="factory">
+                          <object class="GtkBuilderListItemFactory">
+                            <property name="bytes"><![CDATA[
 <?xml version="1.0" encoding="UTF-8"?>
 <interface>
   <template class="GtkListItem">
@@ -248,17 +263,17 @@
   </template>
 </interface>
 ]]>
-                                </property>
-                              </object>
                             </property>
                           </object>
-                        </child>
-                        <child>
-                          <object class="GtkColumnViewColumn" id="traceables_pid_column">
-                            <property name="title" translatable="yes">PID</property>
-                            <property name="factory">
-                              <object class="GtkBuilderListItemFactory">
-                                <property name="bytes"><![CDATA[
+                        </property>
+                      </object>
+                    </child>
+                    <child>
+                      <object class="GtkColumnViewColumn" id="traceables_pid_column">
+                        <property name="title" translatable="yes">PID</property>
+                        <property name="factory">
+                          <object class="GtkBuilderListItemFactory">
+                            <property name="bytes"><![CDATA[
 <?xml version="1.0" encoding="UTF-8"?>
 <interface>
   <template class="GtkListItem">
@@ -278,18 +293,18 @@
   </template>
 </interface>
 ]]>
-                                </property>
-                              </object>
                             </property>
                           </object>
-                        </child>
-                        <child>
-                          <object class="GtkColumnViewColumn" id="traceables_depth_column">
-                            <property name="title" translatable="yes">Depth</property>
-                            <property name="expand">true</property>
-                            <property name="factory">
-                              <object class="GtkBuilderListItemFactory">
-                                <property name="bytes"><![CDATA[
+                        </property>
+                      </object>
+                    </child>
+                    <child>
+                      <object class="GtkColumnViewColumn" id="traceables_depth_column">
+                        <property name="title" translatable="yes">Depth</property>
+                        <property name="expand">true</property>
+                        <property name="factory">
+                          <object class="GtkBuilderListItemFactory">
+                            <property name="bytes"><![CDATA[
 <?xml version="1.0" encoding="UTF-8"?>
 <interface>
   <template class="GtkListItem">
@@ -309,57 +324,64 @@
   </template>
 </interface>
 ]]>
-                                </property>
-                              </object>
-                            </property>
-                          </object>
-                        </child>
-                      </object>
-                    </child>
-                  </object>
-                </property>
-                <property name="start-child">
-                  <object class="GtkScrolledWindow">
-                    <property name="vexpand">true</property>
-                    <child>
-                      <object class="GtkColumnView" id="traceable_column_view">
-                        <style>
-                          <class name="data-table"/>
-                        </style>
-                        <child>
-                          <object class="GtkColumnViewColumn" id="traceable_symbol_column">
-                            <property name="title" translatable="yes">Stack Trace</property>
-                            <property name="expand">true</property>
-                            <property name="factory">
-                              <object class="GtkBuilderListItemFactory">
-                                <property name="bytes"><![CDATA[
+                          </property>
+                        </object>
+                      </property>
+                    </object>
+                  </child>
+                </object>
+              </child>
+            </object>
+          </child>
+          <child>
+            <object class="GtkScrolledWindow">
+              <property name="propagate-natural-width">true</property>
+              <property name="vexpand">true</property>
+              <child>
+                <object class="GtkColumnView" id="traceable_column_view">
+                  <style>
+                    <class name="data-table"/>
+                  </style>
+                  <child>
+                    <object class="GtkColumnViewColumn" id="traceable_symbol_column">
+                      <property name="title" translatable="yes">Stack Trace</property>
+                      <property name="expand">true</property>
+                      <property name="factory">
+                        <object class="GtkBuilderListItemFactory">
+                          <property name="bytes"><![CDATA[
 <?xml version="1.0" encoding="UTF-8"?>
 <interface>
   <template class="GtkListItem">
     <property name="child">
       <object class="GtkInscription">
-        <property name="text-overflow">ellipsize-middle</property>
+        <property name="text-overflow">clip</property>
+        <property name="nat-chars">15</property>
         <binding name="text">
           <lookup name="name" type="SysprofSymbol">
             <lookup name="item">GtkListItem</lookup>
           </lookup>
         </binding>
+        <binding name="tooltip-text">
+          <lookup name="name" type="SysprofSymbol">
+            <lookup name="item">GtkListItem</lookup>
+          </lookup>
+        </binding>
       </object>
     </property>
   </template>
 </interface>
 ]]>
-                                </property>
-                              </object>
                             </property>
                           </object>
-                        </child>
-                        <child>
-                          <object class="GtkColumnViewColumn" id="traceable_depth_column">
-                            <property name="title" translatable="yes">Frame</property>
-                            <property name="factory">
-                              <object class="GtkBuilderListItemFactory">
-                                <property name="bytes"><![CDATA[
+                        </property>
+                      </object>
+                    </child>
+                    <child>
+                      <object class="GtkColumnViewColumn" id="traceable_depth_column">
+                        <property name="title" translatable="yes">Frame</property>
+                        <property name="factory">
+                          <object class="GtkBuilderListItemFactory">
+                            <property name="bytes"><![CDATA[
 <?xml version="1.0" encoding="UTF-8"?>
 <interface>
   <template class="GtkListItem">
@@ -377,19 +399,17 @@
   </template>
 </interface>
 ]]>
-                                </property>
-                              </object>
                             </property>
                           </object>
-                        </child>
+                        </property>
                       </object>
                     </child>
                   </object>
-                </property>
+                </child>
               </object>
-            </property>
+            </child>
           </object>
-        </property>
+        </child>
       </object>
     </child>
   </template>